Merck Lab Filter Membranes – MCE, PES, PVDF & PTFE Series

When precision matters, Merck Millipore laboratory filter membranes deliver trusted performance for a broad range of research and industrial settings. Backed by decades of filtration expertise, Merck’s membranes are designed to ensure sample integrity, reproducible results, and enhanced laboratory safety. Whether you’re working in academic research, pharmaceuticals, environmental monitoring, or biotechnology, these filter membranes provide the purity and reliability your workflows demand.

Filter membranes are essential for routine sample preparation, microbiological analysis, sterile filtration, protein and nucleic acid separation, and quality control. By eliminating particulates and microorganisms, they help protect downstream processes and analytical instruments while supporting compliance with rigorous quality standards.

Applications & Key Advantages

Merck laboratory filter membranes are engineered for versatility and high performance. Key application areas include:

• Sample Clarification: Remove particulates from aqueous or organic solutions prior to analysis.
• Microbiological Testing: Support accurate microbial enumeration and quality control in water, food, and pharmaceuticals.
• Sterile Filtration: Achieve reliable removal of bacteria, yeast, and fungi for buffer, reagent, and media sterilization.
• Protein & Nucleic Acid Purification: Enable efficient isolation, concentration, and cleanup of biological macromolecules.
• Air & Gas Filtration: Protect sensitive equipment and experimental systems from airborne contaminants.

With high flow rates, precise pore size distributions, broad chemical compatibility, and options for low protein binding, Merck membranes simplify daily lab operations. Sterile, pre-assembled formats are available to reduce contamination risk and save time.

Material Types: MCE, PES, PVDF, PTFE & Use Cases

Merck offers a comprehensive portfolio of filter membranes to match your exact requirements. Each membrane type brings unique strengths for specific tasks:

Membrane Type	Key Features & Advantages	Typical Applications
MCE (Mixed Cellulose Ester)	High protein binding, excellent for colony counting, available in sterile options	Microbial analysis, water testing, particle monitoring
PES (Polyethersulfone; Millipore Express™)	Low protein binding, high flow rates, strong chemical resistance	Sterile filtration of media, buffers, biological samples
PVDF (Durapore®)	Low extractables, broad solvent compatibility, hydrophilic/hydrophobic options	HPLC sample prep, solvent filtration, protein analysis
PTFE	Chemically inert, withstands aggressive solvents and acids, hydrophobic	Air/gas filtration, solvent filtration, sterilization of corrosive solutions
Nylon	Hydrophilic, good for both aqueous and some organic solvents	General laboratory filtration, sample preparation

These material options ensure you can optimize both performance and economy in your specific workflows, from high-throughput screening to stringent regulatory applications.

Featured SKUs & Technical Specifications Table

Below is a selection of high-demand Merck filter membranes, highlighting their core technical attributes. All SKUs and specifications align with Merck’s official documentation.

SKU	Material	Pore Size	Diameter	Sterility	Packaging	Typical Use
GSWP04700	MCE	0.22 µm	47 mm	Non-sterile	100/pack	Microbial analysis
GSWP01300	MCE	0.22 µm	13 mm	Non-sterile	100/pack	Particle monitoring
GPWP04700	PES	0.22 µm	47 mm	Sterile	50/pack	Sterile filtration
HVLP04700	PVDF	0.45 µm	47 mm	Non-sterile	100/pack	HPLC sample prep
GVHP04700	PVDF	0.22 µm	47 mm	Non-sterile	100/pack	Protein analysis
FHLC04700	PTFE	0.45 µm	47 mm	Non-sterile	100/pack	Solvent filtration
HATF04700	Nylon	0.2 µm	47 mm	Non-sterile	100/pack	General filtration

All products undergo rigorous QC testing and are supplied with detailed technical documentation.

Selection Guide & FAQs for Filter Membrane Choice

1. How do I select the right pore size?

• Use 0.22 µm or 0.2 µm for sterile filtration of solutions (removes bacteria and most microorganisms).
• Choose 0.45 µm for clarification, particle removal, or general analysis.

2. Which membrane should I use for proteins or sensitive biological samples?

PES and PVDF membranes are preferred due to their low protein binding and minimal extractables.

3. Can these filters handle organic solvents?

PVDF and PTFE membranes are excellent for aggressive or organic solvents, while MCE and PES are better suited to aqueous solutions.

4. How should I store unused filter membranes?

Store in a dry, room-temperature environment, away from direct sunlight and corrosive vapors. Sealed packaging extends shelf life and sterility.

5. Are sterile membranes required for all applications?

Sterile membranes are essential for cell culture, clinical, or critical QA workflows, but non-sterile options are suitable for general analytical or research tasks.

Trust & Ordering: Merck Quality and Purchase Channels

Selecting Merck Millipore filter membranes ensures you benefit from industry-leading quality, technical support, and continuous innovation. By choosing genuine products, you safeguard your experimental results and ensure reproducibility—whether for daily lab tasks or regulatory audits.

For detailed product information, competitive quotations, or technical support, reach out to reliable distributors like Iright (iright.com). Their team provides expert advice and responsive service to help you find the ideal filtration solutions for your lab.